Regulated vs. exempt debit: why two debit cards can cost different amounts

Regulated debit cards are issued by large banks and fall under the Durbin Amendment, which caps their interchange. Exempt debit cards come from smaller banks and credit unions, aren’t capped and usually cost merchants more to accept.

The regulated vs. exempt debit split is set by who issued the card, not by anything you or your customer does. But it shows up on your statement every month, and it can explain why your debit costs aren’t as low as you expected.

Where the rule comes from

The Durbin Amendment is part of the Dodd-Frank financial reform law passed in 2010. The Federal Reserve carries it out through a regulation that took effect in 2011. It did two main things for debit cards:

1. Capped interchange on debit cards issued by large banks, defined by the bank’s asset size, at $10 billion or more. These cards are regulated.
2. Required routing choice, meaning debit cards must be able to run over at least two unaffiliated networks, so the card brand on the front isn’t the only path for the transaction.

Banks below the asset threshold are exempt from the interchange cap. Their debit cards still follow the card networks’ interchange tables, which are generally higher than the capped rate. Some prepaid and government benefit card programs can also fall outside the cap.

This guide explains the general structure of the rule. The exact cap and its components are set by the Federal Reserve and can be revised. Check current rules rather than relying on any figure you read secondhand.

How the two compare

	Regulated debit	Exempt debit
Who issues it	Large banks above the asset threshold	Smaller banks and credit unions
Interchange	Capped by federal rule	Set by the card networks, not capped
Typical relative cost	Usually the lowest of any card type	Higher than regulated, often below many credit cards
Debit routing rules	Apply	Apply
Can you tell at the counter?	No	No

For the bigger picture of how debit compares with credit cards, see debit vs. credit processing costs.

An example

Here is a hypothetical example with round numbers, for illustration only. Say a convenience store runs $20,000 a month in debit cards. In one town, most customers bank at large national banks, so most of that debit is regulated. In another town, many customers use a local credit union, so a bigger share is exempt. Even with identical pricing and identical sales, the second store will usually pay more in debit interchange. Nothing about the stores is different except where their customers bank.

Why the cap affects small tickets differently

The regulated debit cap is built from a fixed per-transaction component plus a small percentage of the sale. That structure matters for businesses with small average tickets. On a large sale, regulated debit is very inexpensive as a share of the sale. On a very small sale, the fixed part can make regulated debit cost more, as a percentage, than you might expect, and in some small-ticket cases an exempt or credit category can come out close to it.

If your business runs lots of small sales, such as a coffee shop, vending or quick service, ask your processor how your debit is pricing on small tickets. The answer depends on your card mix, average ticket and the categories your transactions land in. Our guide on card present vs. card not present rates covers another factor that moves debit cost.

How to see your own split

• On Interchange-Plus pricing, regulated and exempt debit usually appear as separate interchange categories, often with words like regulated or exempt in the name. You can see the volume and cost of each.
• On tiered pricing, debit may be grouped into a bucket that doesn’t distinguish the two. You may be paying a single debit rate regardless of what the card actually cost.
• On flat-rate pricing, all cards carry the same rate. The low cost of regulated debit stays with the provider.

If most of your customers pay with debit, this is one of the clearest reasons to look at how your account is priced. A high share of regulated debit on a bundled plan usually means the provider is keeping much of the difference.

Questions to ask your processor about debit

You don’t need to master the federal rule to make use of it. A few direct questions will tell you whether your debit volume is priced fairly:

1. How much of my monthly volume is regulated debit, and how much is exempt debit?
2. Am I paying the actual interchange on each, or a bundled debit rate?
3. What markup do you add to debit transactions, and is it the same as on credit?
4. How is my debit routed, and does my terminal support PIN entry where it helps?
5. How do my small-ticket debit sales price compared with my larger ones?

A processor that prices debit transparently can answer each of these from your statement in a few minutes. If the answers are vague, or the statement can’t show the split at all, that’s a sign the low cost of regulated debit may not be reaching you.

What PayZoom does

PayZoom recommends Interchange-Plus pricing, so regulated and exempt debit each pass through at their actual interchange and you see the difference on your statement. Our margin is a separate line, as low as 0.05% + $0.22 per transaction, depending on your setup, and for Interchange-Plus merchants it never increases, in writing. Send one statement for a free statement analysis and we’ll show you how your debit volume breaks down. Learn more about our credit card processing.